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The Alkali Metals, Potassium and Sodium

The Explosion of High Pressure Gas Cylinders

An Improved Wagon

A New Method of Distributing Oil on Water

An Improved Lathe Attachment

A Fine Yacht Engine

An Electrically Operated Switch

Making Celluloid Stereotypes Etc.

A New Jersey Pick Up Plant

The Bonta Glass Rolling Machine, Glass Grinding and Polishing Machine and Annealing Oven

Photochronography in the Medical Sciences

A Shorthand Typewriter

To Inventors


  • Departments

    Recently Patented Inventions

  • Business and Personal

  • Index of Inventions

  • Notes and Queries

  • Index

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The Essential Guide to the Modern World

The Essential Guide to the Modern World